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CVE-2026-73070

medium

Vim is an open source, command line text editor.

Vendor / product: Vim — vim

Vim is an open source, command line text editor. Prior to 9.2.0842, the socket server backend in src/socketserver.c accepts unbounded client connections in socketserver_accept(), causing descriptors to overflow fd_set structures in src/channel.c and fixed-size struct pollfd arrays in src/os_unix.c, which allows a local process that can connect to the server socket to corrupt stack memory or terminate the Vim server. This issue is fixed in version 9.2.0842.

CVSS
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-08-11 16:17
Modified: 2026-10-29 15:55
NVD status: Analyzed
Last synced 15 hours ago
Verified against the source API 2026-10-29 16:13 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

vim / vim ≥9.2.0512 <9.2.0842

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/vim/vim/security/advisories/GHSA-49m8-wwxj-mr69
Patch / mitigation: https://github.com/vim/vim/commit/5598618b2daf8e36b3bf0251caaefcf0bf8e85e4
Patch / mitigation: https://github.com/vim/vim/security/advisories/GHSA-49m8-wwxj-mr69

References

Data sources

NVD CVE API 2.0 — fetched 2026-10-29 16:13 UTC · record ↗

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